Improve add/remove interface for validation rules

src/Config/README.md

@@ -9,10 +9,10 @@ Modules and plugins can have config files in the /config directory. Plugin and m
 
 ````
 // Get a configuration string from the CMS module
-echo Config::get('cms::options.allowComments');
+echo Config::get('cms::options.allow_comments');
 
 // Get a configuration string from the october/blog plugin.
-echo Config::get('october.blog::options.allowComments');
+echo Config::get('october.blog::options.allow_comments');
 ````
 
 ## Overriding configuration strings

src/Database/Traits/Validation.php

@@ -134,16 +134,26 @@ public function addValidationRule(string $name, $definition)
             $rules = explode('|', $rules);
         }
 
-        $rules[] = $definition;
+        if (is_array($definition)) {
+            $rules = array_merge($rules, $definition);
+        }
+        else {
+            $rules[] = $definition;
+        }
 
         $this->rules[$name] = $rules;
     }
 
     /**
      * removeValidationRule removes a validation rule from the stack and resets the value as a processed array
      */
-    public function removeValidationRule(string $name, $definition)
+    public function removeValidationRule(string $name, $definition = '*')
     {
+        if ($definition === '*') {
+            unset($this->rules[$name]);
+            return;
+        }
+
         $rules = $this->rules[$name] ?? [];
         if (!is_array($rules)) {
             $rules = explode('|', $rules);